Uncracked disk images of Mindwheel (Synapse) from the originals (3 sides).
Supports 80 columns, unlike the existing 4-sided cracked version.
A pdf version of the book can be found on a popular abandonware website.

However, there appears to be more protection.  The Copy II+ 9.1 parm entry indicates
a synchonized track $23 (track 36), and track $23 does have nibble data on all 3 sides.
Possibly a disk check invoked later in the game?